Overview
The TXB0102DCURG4 is a 2-bit bidirectional voltage-level translator produced by Texas Instruments. This device is designed to facilitate voltage translation between different voltage domains, making it versatile for a wide range of applications. It operates with two separate configurable power-supply rails, allowing for universal low-voltage bidirectional translation between various voltage nodes such as 1.2 V, 1.5 V, 1.8 V, 2.5 V, 3.3 V, and 5 V.
The device is fully specified for partial-power-down applications and includes output-enable (OE) input to place all outputs in a high-impedance state when necessary. This feature, along with the Ioff circuitry, prevents current backflow and protects the device during power-down scenarios.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| VCCA (A Port Voltage) | 1.2 V to 3.6 V | V |
| VCCB (B Port Voltage) | 1.65 V to 5.5 V | V |
| Data Rate | Up to 100 Mbps | Mbps |
| Input Transition Rise/Fall Rate (A Port) | 40 ns/V | ns/V |
| Input Transition Rise/Fall Rate (B Port) | 30 ns/V (4.5 V to 5.5 V), 40 ns/V (1.65 V to 1.95 V) | ns/V |
| Operating Temperature | –40°C to 85°C | °C |
| Package Type | 8-VSSOP |
Key Features
- 2-bit noninverting bidirectional voltage-level translator.
- Auto direction sensing for easy integration.
- Supports voltage translation between various voltage nodes (1.2 V, 1.5 V, 1.8 V, 2.5 V, 3.3 V, and 5 V).
- Output-enable (OE) input to control output state.
- Ioff circuitry for partial-power-down applications to prevent current backflow.
- Available in Texas Instruments NanoFree™ packages.
Applications
- Desktop PCs and laptops for voltage translation between different components.
- Mobile devices and handheld electronics requiring voltage level shifting.
- Industrial control systems and automation equipment.
- Medical devices and diagnostic equipment.
- Automotive systems and infotainment units.
Q & A
- What is the primary function of the TXB0102DCURG4?
The primary function of the TXB0102DCURG4 is to perform bidirectional voltage-level translation between different voltage domains.
- What are the voltage ranges for the A and B ports of the TXB0102DCURG4?
The A port operates from 1.2 V to 3.6 V, and the B port operates from 1.65 V to 5.5 V.
- What is the maximum data rate supported by the TXB0102DCURG4?
The device supports data rates up to 100 Mbps.
- How does the output-enable (OE) input function?
The OE input places all outputs in a high-impedance state when it is low, and it must be tied to GND through a pulldown resistor to ensure the high-impedance state during power-up or power-down.
- What is the purpose of the Ioff circuitry in the TXB0102DCURG4?
The Ioff circuitry disables the outputs when the device is powered down, preventing current backflow and protecting the device.
- What are the operating temperature ranges for the TXB0102DCURG4?
The device operates over a temperature range of –40°C to 85°C.
- In what package type is the TXB0102DCURG4 available?
The device is available in an 8-VSSOP package.
- Can the TXB0102DCURG4 be used in partial-power-down applications?
Yes, the device is fully specified for partial-power-down applications.
- What is the significance of ensuring VCCA is less than or equal to VCCB?
Ensuring VCCA is less than or equal to VCCB is crucial to prevent damage and ensure proper operation of the device.
- How should unused data I/O pairs be handled?
Unused data I/O pairs must be held in the same state, either both at VCCI or both at GND.
